Hello @chaython,
Thank you for contacting Rank Math today.
Nowadays, Google’s new Search Console is throwing weird errors. You can trying submitting each sitemap separately https://i.mythemeshop.com/WNCUsp
Also, please stay advised that if Google’s not able to fetch and the sitemap’s opening properly, please check if the server is responding well. Google discards the websites which load slow.
You can use our online tool to check the loading time
https://rankmath.com/tools/seo-analyzer/
It could show up like this
http://i.mythemeshop.com/jyNGUp
I would like to also mention that your site is not using SSL certificate, it is recommended to use SSL certificate or else users will insecure warning.
Hope that helps. Thank you.
Hello,
Closing this topic due to inactivity.
Please feel free to open a new support topic and we will be more than happy to assist you if you need any help.
Thank you.